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A friend asked me to have a crack at downgrading her PSP. I've flashed DS phat before, and I used to softmod a lot of xbox consoles, but I've never done PSP.

What tools/software will I need? (I want darkalex fw installed)
How do I check the current firmware version? (its a pink PSP, she thinks its 2.80)
What emulators should I get? (we want MAME, genesis, gba, SNES, N64, neo geo, xbox360* & ps1)

To check the firmware version go to System Settings and then System information. To downgrade you will need an old (unpatched) copy of GTA Liberty City Stories or Lumines UMD. Without either of these you will not be able to downgrade.

If you have firmware at 3.03 or below you can use the GTA downgrader but if your firmware is higher than this then you will need Lumines (after upgrading to 3.50 if required).

It all depends on what firmware version you have and Motherboard type but I do think the 3.50 downgrader that uses Lumines is the easiest and it detects your Motherboard type too (used that downgrader 3-4 times with 100 success).

To check the firmware version go to System Settings and then System information. To downgrade you will need an old (unpatched) copy of GTA Liberty City Stories or Lumines UMD. Without either of these you will not be able to downgrade.

If you have firmware at 3.03 or below you can use the GTA downgrader but if your firmware is higher than this then you will need Lumines (after upgrading to 3.50 if required).

It all depends on what firmware version you have and Motherboard type but I do think the 3.50 downgrader that uses Lumines is the easiest and it detects your Motherboard type too (used that downgrader 3-4 times with 100 success).

To check the firmware version go to System Settings and then System information. To downgrade you will need an old (unpatched) copy of GTA Liberty City Stories or Lumines UMD. Without either of these you will not be able to downgrade.

If you have firmware at 3.03 or below you can use the GTA downgrader but if your firmware is higher than this then you will need Lumines (after upgrading to 3.50 if required).

It all depends on what firmware version you have and Motherboard type but I do think the 3.50 downgrader that uses Lumines is the easiest and it detects your Motherboard type too (used that downgrader 3-4 times with 100 success).

Click to expand...

Let's not forget that anything that is 2.80 or less can be downgraded without any games I believe. 2.71 and below for sure without the need for an exploitable game.

1. update psp to fw 3.50
2. get the downgrader files + 1.50 eboot and put them in the correct folders on the memorystick.
3. double check that all files are in the right folders on your memorystick.
4. boot lumines, press start when the menu appears and you will be booted back to the xmb.
5. check the system settings and it should say: 3.50 HEN
6. now goto game --> memorystick and start the downgrader.
7. press x to confirm and wait till its done, the psp will reboot and you're at 1.50
8. now install custom firmware 3.40oe-a and start playing

1. update psp to fw 3.50
2. get the downgrader files + 1.50 eboot and put them in the correct folders on the memorystick.
3. double check that all files are in the right folders on your memorystick.
4. boot lumines, press start when the menu appears and you will be booted back to the xmb.
5. check the system settings and it should say: 3.50 HEN
6. now goto game --> memorystick and start the downgrader.
7. press x to confirm and wait till its done, the psp will reboot and you're at 1.50
8. now install custom firmware 3.40oe-a and start playing